Phylum Porifera Grant, 1836 - sponges
   Class Hexactinellida Schmidt, 1870 - hexactinellids
     Subclass Hexasterophora Schulze, 1886
       Order Lychniscosa Schrammen, 1903 see Order Lychniscosida Schrammen, 1903
         Family Dactylocalycidae Gray, 1867
           Subfamily †Dactylocalycinae Gray, 1867
             Genus †Exanthesis Regnard, 1925
               1 Subgenus †E. (Eligma) Regnard, 1925, nom. illeg.
               2 Subgenus †E. (Exanthesis) Regnard, 1925